OOP Auth Model — .NET (Console)

A small .NET console application that implements a simplified authentication + authorization model (similar in spirit to an Identity Server).
This repository demonstrates Object-Oriented Programming (OOP) and a clean separation of responsibilities using a multi-project solution.

Features

• Login using username or email + password
• Role-based access control (RBAC): Users → Roles → Permissions
• Permission checks (e.g., CATALOG_UPDATE)
• In-memory persistence (no database required)
• Clean structure: Domain / Repositories / Services / Console UI

UML Design

Solution Structure

oop-auth-model-dotnet/
├── OopAuthModel.slnx
├── README.md
├── docs/
│   └── uml/
│       └── auth-model.png
└── src/
    ├── OopAuthModel.Console/
    ├── OopAuthModel.Domain/
    ├── OopAuthModel.Repositories/
    └── OopAuthModel.Services/